Kohl's has the the Shark IQ R1001AE Wi-Fi Home-Mapping Robot Vacuum w/ Self-Empty Base on sale for $449.99. With the code Family20, it will take $90 off the that price, as well as $70 Kohls Cash + $18 Kohls Rewards dollars (if you are signed up) and free shipping.
Total price is $359.99 shipped.
Additional rewards for future use is $88.
Not the lowest price ever, but if you are a Kohl's shopper the all in deal is much better.